(19)

(11)

EP 0 356 422 A1

(12)

(43) Date of publication: 07.03.1990 Bulletin 1990/10 (21) Application number: 87906689.0 (22) Date of filing: 21.04.1987

(51) International Patent Classification (IPC):  G01S 13/ 34( . ) F42C 13/ 04( . ) (86) International application number: PCT/US1987/000875 (87) International publication number: WO 1988/008545 (03.11.1988 Gazette 1988/24)

(84) Designated Contracting States: BE CH DE FR GB IT LI NL SE (71) Applicant: Magnavox Government and Industrial Electronics Company Fort Wayne Indiana 46808 (US)	(72) Inventor: GRANDOS, Norman Fort Wayne, IN 46805 (US) (74) Representative: De Jongh, Cornelis Dominicus, et al  INTERNATIONAAL OCTROOIBUREAU B.V., Prof. Holstlaan 6 NL-5656 AA Eindhoven NL-5656 AA Eindhoven (NL)